The word primitive is a noun and an adjective.
The noun form is an original word that is not derived from another.
The adjective form means to be pertaining to the beginning or origin.
By speech and signals.
There are no primitive languages. All human speech is fully developed. That is why it is impossible to know for certain how language arose.
The most primitive form of human speech is believed to be nonverbal gestures, facial expressions, and vocalizations that conveyed basic emotions, needs, and intentions. These early forms of communication likely evolved into more complex languages over time.
The part of speech for this particular word is a noun.
part of speech
The part of speech for "answer" is a noun.
adverb
what part of speech is beneath
The part of speech for "unfamiliar" is an adjective.
The part of speech of "came" is a verb.
The part of speech for "twirl" is a verb.
The part of speech for "explicit" is an adjective.